Screening Interview

The first part of the study is to determine if you can be in the study. During this phone interview you will

Be asked questions to see if you are eligible to participate

Receive information about study activities

Be allowed to ask questions about the study

This screening interview should take approximately 20 minutes.

Study Visit

Your study visit will be scheduled on the second, third, or fourth day of your period at one of our three study sites. At the study visit you will:

Review and sign the study consent forms

Provide a blood sample of about 3 tablespoons

Provide a first-morning urine sample

The study visit will take about 20 minutes.

Online Fertility Diary

While you are trying to get pregnant, we will ask you to keep a fertility diary online in which you will record menstruation, intercourse, medications, signs of ovulation, and pregnancy test results. We ask that you keep the daily diaries for up to 4 months. Daily entries should take approximately 3 minutes to complete. After 4 months, you will be prompted to complete monthly diaries. Participants will be able to automatically track their diary entries graphically using our free fertility tracking program.

Pregnancy Testing

We provide you with up to 60 free pregnancy tests while you are trying to conceive. You should use your pregnancy tests only when you miss a period, starting on day 28 of your cycle. Because we are standardizing when our study participants test for pregnancy, we ask that you test every 3 days from day 28 onwards. You will be prompted in your daily diary when you will be required to take a pregnancy test. We ask that you enter the results of each pregnancy test in your online fertility diary. You can find instructions on how to use the pregnancy tests here.

Ovulation Testing

We provide you with up to 180 free ovulation predictor tests while you are trying to conceive (15 test strips/month). You should use your ovulation test strips as directed. You can find instructions on how to use the ovulation predictor tests here.

Pregnancy Ultrasound

When you have your positive pregnancy test, we will schedule an ultrasound at one of two study sites to evaluate the pregnancy. The ultrasound will be scheduled during the 7th week of pregnancy. You will be provided pictures, and at your request, a copy of the report can be sent to your doctor. The ultrasound visit will take about 20 minutes.